Provenio — Art Provenance Intelligence
Three centuries of auction-market history (1668–2025), indexed and cited. Ask once; every line returns with its source, every gap named for what it is. Provenance research for auction specialists, underwriters, curators, and collectors.
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OpenAPI Spec (preview)
openapi: "3.1.0"
info:
title: Provenio Art Intelligence API
description: |
Institutional-grade art provenance and market intelligence.
282,731 records, 99,892 priced auction transactions (1700–2025).
Custody-gap detection with risk-window flagging (Washington Principles).
Cross-indexed against Getty Provenance Index, Knoedler stock books,
ERR Project, lostart.de, and MNR (France).
version: "1.0.0"
contact:
email: research@provenio.art
license:
name: Propri